USB to RS485/422 Terminal Block

12 Reviews Add Your Review

$32.49

USB to RS-485 / RS-422 Converter contains an FTDI Chip with terminals photoelectric interface can convert the single ended USB signal into difference RS-422 or RS-485 signal. The converter includes Transient Voltage Suppressor technology!

Availability: In stock

Model Number: USA-482422

Documentation & Downloads

USB to RS-422/485 Converter FTDI CHIP w/ Terminals

$32.49

Details

GM-482422 USB to RS-422 / RS-485 Converter FTDI Chip with Terminals photoelectric isolation interface converter can convert the single ended USB signal into difference RS-422 or RS-485 signal. The built-in photoelectric isolator of the USB to RS485 / RS422 Converter can provide an isolation voltage as high as 2500Vrms. There is also a rapid transient voltage suppression protector for protection of RS422 / RS485 interface with advanced TVS (Transient Voltage Suppressor) technology

Under normal conditions the TVS tube is in a state oh high resistance. However, when both ends of the TVS tube are hit by transient high energy, the impedance at the both ends can be depressed by the TVS at very high speed. After absorbing a high current, the voltage between the two ends is depressed and kept at a pre-set value; therefore no damage is caused to the electrical components behind the transient high voltage impact.

The protector can effectively restrain lighting or ESD (Electro-Static Discharge) with a protection voltage of 600w on each line for lightning surge and transient voltage events, while transmission of RS-422 / RS-485 is maintained by capacitors between the poles.

Standards Supported

USB v. 1.0, 1.1, 2.0
TIA/EIA RS-422, RS485

Additional Features

RS-485 Signals: T/R+, T/R-, GND

RS-422 Signals: TX+, TX-, RX+, RX-, GND

Modes: Asynchronous, Point-to-Point, Point-to-Multipoint, 2-Wire (Half-Duplex), 4-Wire (Full-Duplex)

Transmission Rates: 300 to 921,600bps, automatic detection of signaling rate

Load Capability: 32 devices in Point-to-Multipoint topology.

Transmission Distance: RS485/422: 1.2km (all rates), USB: 5 Meters

Interface Protection: 600W Lightning Strike and surge suppression, +- 15KV ESD protection

Signaling Diagnostics: LEDs for POWER, TX and RX

Dimensions: 62x33x19 mm

Working environment: -40C to 85C, RH 5%-95%

Chipset: FTDI FT232RL

OS Support

Windows 7, 8, 10, and 11
Linux
Mac OS 10.X

In the Box

USB to RS-422 / RS-485 Converter FTDI CHIP with Terminals
Latest FTDI Driver (also available for download)
GM-482422 Product Manual (also available for download)

Technical Specifications

UPC	729440692391
Manufacturer	Gearmo
Warranty	One Year
Country of Origin	China
LED Indicators	Power, RX / TX
Connector(s)	DB9 Male w/ Nuts, USB 2.0 Type A Male Fixed Cable
Downstream Port Count	1
Serial Modes	RS422, RS485
Chip Model	FTDI FT232RL
OS Support / Compatibility	Linux, Windows 7, Windows 8, Windows 10, Windows 11, Mac OS
ESD Protection	15kV
Downstream Port Type	Male DB9 /W Nuts
Upstream Port Count	1
Upstream Port Type	USB Type A Fixed Cable

Reviews (12)

Based on 12 reviews

5 stars: 12 reviews
4 stars: 0 reviews
3 stars: 0 reviews
2 stars: 0 reviews
1 star: 0 reviews

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Nickname

Summary

Review

Quality

It works

Review by Daniel Berntsen

Works without any additional drivers etc. Plug and play for a raspberry pi project

Quality

Purchased 2020

Review by Kenneth Allington

5 years and going strong. I use this adapter to scan BACNET comm lines. It has never not worked. I will use this when other adapters fail to double check myself. I believe this can also be used to connect to generic BACNET devices like Mitsubishi comm cards. (I originally purchased it to program a mini split comm adapter).I recommend this to co workers as their preferred RS-485 adapter.Ken Trane Controls.

Quality

Worked Great!!

Review by Ron A-CA

Worked great! Fast delivery!!

Quality

Works great

Review by George

My PC configured it automatically and it has been working with no issues!

Quality

Worked with M1 Mac

Review by Tiffany Bird

I was nervous because the driver listed only intel Macs. It worked for me with my M1 MacBook Pro running MacOS Ventura, version13.1, using cool term. The device showed up in cool term without installing any drivers. I initially had my baud set incorrectly. So, I thought it wasn't working and installed the driver. Now two devices show up in cool term. Both seem to work correctly.

Quality

perfect.

Review by Kira

This does exactly what its supposed to and has held up to some extreme conditions (-36F to 111F) without fail.

Quality

Nice usb device for bacnet access.

Review by Kindle Customer

This device plus YABE are good for looking at bacnet devices. Finding out what points are available and writting to some for settings.

Quality

Works perfect for Watlow EZ-Zone Controllers/Configurator

Review by T. Webb

Bought this specifically to use for configuring a Watlow PM8 control using the Watlow EZ Configuration software (via RS-485) on a Windows 10 PC. Installed this adapter into USB port, let Windows search and install a driver and it was ready to roll. It came with a mini-cd containing a bunch of driver files and pdf manuals as well. Didn’t need the driver files, but the manual was nice, as it illustrates the adapter pin-out. Overall, a great purchase.

Quality

Great

Review by N.Kay

Price abit high

Quality

Works for WATLOW PM6 Controllers

Review by W. Dagg

For the 1 person alive who is also using WATLOW's EZ-Zone Configurator, this works as well as - or better than - the one sold by WATLOW and is only about 14% the cost. We'll see how it holds up over time. Plugging it in and letting Windows (don't know about Mac & Linux) download the driver, or going to Device Manager and getting the driver off the web should get you running. Just remember to set the latency for the COM port if there are issues. You will still need to send power to the WATLOW device while trying to configure it.